Visible on PCI bus, reporting its type / vendor IDs. No further test done.
eBay
USB 3.0 Video Capture Card 4K 60HZ HDMI-compatible Video Grabber Live Streaming Box Recording for PS4 XBOX Phone Game DVD Camera
Aliexpress UK
Grass Valley HDSPARK. It is designed for use with existing EDIUS v5 software installations. It is designed to manage standard- or high-definition video. Embedded HDMI audio output and separate RCA jacks are available for audio monitoring.
eBay
Raspberry Pi pico rp2040 video capture card via USB for game boy /Game Boy Color/Game Boy Pocket GB Interceptor
Aliexpress UK
Canopus DVStorm RT K12-PC-112 Video Capture & Editing Card. and DVStorm-RT Codec T04-AB-009.
eBay
1set/lot Video Game Capture Card For Gameboy GB For Nintendo Gameboy Color For Gameboy Advance Interceptor For GBA GBC GBP
Aliexpress UK
Fifine Video Capture Card 4K HDMI for Live Streaming and Gaming,Compatible with PS4/PS5/Windows/Mac OS/Switch/Xbox - V3
Aliexpress UK
Retro game Video Game Capture Card For Gameboy GB For Nintendo Gameboy Color For Gameboy Advance Interceptor For GBA SP GBC GBP
Aliexpress UK
1set Raspberry Pi RP2040 Video Capture Card for Nintendo Gameboy GB GBA GBC GBP Game Interceptor
Aliexpress UK
Raspberry Pi Pico RP2040 Video Game Capture Card For Gameboy GB Interceptor For Nintendo Gameboy Color/Gameboy Advance SP
Aliexpress UK
Y16A DIY Video Capture Card GB Interceptor Built in RP2040 Board for the Game Boy GBC GBA GBP Consoles, Red
Aliexpress UK